Element x and element y have a difference in electronegativity of 0.7. will the bond xy be covalent or ionic? Explain using the electronegativity difference.

If the density of water is 1.0 g/cm3, which of these materials would float in water, based on their densities? check all that apply. aluminum cork iron lead wax

Scientists often deal with numbers that are either very large or very small. for example, the radius of the sun is approximately 696,000 kilometers, while bacterial cells are as small as 1.9 × 10-4 millimeters. express each of these numbers in an alternate form.

The term gas is limited to those substances that exist in the gaseous state at